BSI 15/30329816 DC:2015 Edition
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BS EN 60825-4. Safety of laser products. Part 4. Laser guards
Published By | Publication Date | Number of Pages |
BSI | 2015 | 77 |
PDF Catalog
PDF Pages | PDF Title |
---|---|
9 | 1 Scope 2 Normative references 3 Definitions |
11 | 4 Laser processing machines 4.1 Design requirements 4.1.1 General requirements |
12 | 4.1.2 Consumable parts of laser guards 4.2 Performance requirements 4.2.1 General 4.2.2 Active laser guards 4.3 Validation 4.3.1 Validation of performance |
13 | 4.4 User information 5 Proprietary laser guards 5.1 Design requirements 5.2 Performance requirements 5.3 Specification requirements |
14 | 5.4 Test requirements 5.4.1 General 5.4.2 Sample testing 5.5 Labelling requirements |
15 | 5.6 User information |
16 | Annex A (informative) General guidance on the design and selection of laser guards A.1 Design of laser guards A.2 Selection of laser guards |
18 | Annex B (informative) Assessment of foreseeable exposure limit (FEL) B.1 General |
19 | B.2 Reflection of laser radiation |
20 | B.3 Examples of assessment conditions |
22 | B.4 Exposure duration B.4.1 Normal operation |
23 | B.4.2 Fault Conditions |
24 | B.4.3 Servicing operations |
25 | Annex C (informative) Elaboration of defined terms C.1 Distinction between FEL and PEL C.2 Active guard parameters |
27 | Annex D (normative) Proprietary laser guard testing D.1 General D.2 Test conditions |
30 | D.3 Protective exposure limit (PEL) D.4 Information supplied by the manufacturer |
32 | Annex E (informative) Guidelines on the arrangement and installation of laser guards |
35 | E.3.2.10 Location of workers E.3.2.11 Maintenance provision E.3.2.13 Guarding environment |
42 | Annex F (informative) Guideline for assessing the suitability of laser guards F.1 Identification of hazards F.1.1 Selection of safety measures F.2 Risk assessment and integrity F.2.1 General |
44 | F.2.3 Practical risk assessment methods |
45 | F.3 General design |
46 | F.4 Selection of safeguards F.5 Guard design and construction F.5.1 General requirements for the design and construction of fixed and movable guards F.5.2 Fixed enclosing guards |
47 | F.5.3 Fixed distance guards F.5.4 Movable and interlocking guards F.5.5 Adjustable guards F.5.6 Temporary guards F.6 Guard construction and materials F.6.1 Materials F.6.1.1 General |
48 | F.6.1.2 Solid sheet metal F.6.1.3 Glass F.6.1.4 Plastics F.6.1.5 Other materials F.6.2 Supports |
49 | F.6.3 Cover plates F.6.4 Anthropometrical considerations F.7 Other safety devices F.7.1 Trip devices F.7.2 Electro-sensitive protection equipment F.7.3 Control systems (keys, pressure mats, light curtains) F.7.3.1 Captive-key systems F.7.3.2 Pressure sensitive mats F.7.3.3 Light curtains |
50 | F.8 Interlocking considerations F.8.1 Functions of interlocks F.8.2 Interlocking media |
51 | F.8.3 Common interlocking methods F.8.3.1 Guard locking power interlocking F.8.3.2 Interlocking guard power interlocking F.8.3.3 Dual-control system interlocking with cross monitoring F.8.3.4 Dual-control system interlocking without cross monitoring F.8.3.5 Single channel system interlocking F.8.4 Failures of interlocking systems F.8.4.1 Types of failure |
52 | F.8.5 Security of interlocking systems F.8.6 Integrity of interlocking systems |
53 | F.8.7 Choice of interlocking system F.8.8 Electrical considerations F.8.9 Mechanical considerations F.8.9.1 Interlocking devices F.8.9.2 Mechanical interlocking methods |
54 | F.8.10 Pneumatic and hydraulic considerations F.8.10.1 Interlocking devices F.8.10.2 Pneumatic or hydraulic interlocking methods F.9 Environmental considerations F.9.1 Environment F.9.2 Corrosion |
55 | F.9.3 Hygiene and guard design F.9.4 Mist, fumes and dust F.9.5 Noise F.10 Installation consideration – Environmental factors – Services F.10.1 Lighting F.10.2 Cables and pipes F.11 Maintenance and service considerations F.11.1 Operational maintenance of safeguards |
56 | F.11.2 Properties of laser guard materials |
68 | Annex G (normative) Beam delivery systems G.1 General G.2 Terms and definitions |
69 | G.3 General requirements G.3.1 General considerations |
70 | G.3.2 Protective housing G.3.3 Access panels and safety interlocks for beam delivery systems using free space transmission |
71 | G.4 Verification of safety requirements or protective measures G.5 Information for users G.5.1 Technical documentation |
72 | G.5.2 Labelling G.6 Examples of risk assessments |